/*
* Copyright (C) 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include"config.h"
#include"MethodCallLinkStatus.h"
#include"CodeBlock.h"
namespace JSC {
MethodCallLinkStatus MethodCallLinkStatus::computeFor(CodeBlock* profiledBlock, unsigned bytecodeIndex)
{
UNUSED_PARAM(profiledBlock);
UNUSED_PARAM(bytecodeIndex);
#ifENABLE(JIT) && ENABLE(VALUE_PROFILER)
// NOTE: This does not have an LLInt fall-back because LLInt does not do any method
// call link caching.
if (!profiledBlock->numberOfMethodCallLinkInfos())
return MethodCallLinkStatus();
MethodCallLinkInfo& methodCall = profiledBlock->getMethodCallLinkInfo(bytecodeIndex);
if (!methodCall.seen || !methodCall.cachedStructure)
return MethodCallLinkStatus();
if (methodCall.cachedPrototype.get() == profiledBlock->globalObject()->methodCallDummy()) {
return MethodCallLinkStatus(
methodCall.cachedStructure.get(),
0,
methodCall.cachedFunction.get(),
0);
}
return MethodCallLinkStatus(
methodCall.cachedStructure.get(),
methodCall.cachedPrototypeStructure.get(),
methodCall.cachedFunction.get(),
methodCall.cachedPrototype.get());
#else // ENABLE(JIT)
return MethodCallLinkStatus();
#endif // ENABLE(JIT)
}
} // namespace JSC